| 1 | /*- |
| 2 | * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer as |
| 10 | * the first lines of this file unmodified. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * |
| 28 | * $FreeBSD: src/sys/dev/fb/fb.c,v 1.11.2.2 2000/08/02 22:35:22 peter Exp $ |
| 29 | * $DragonFly: src/sys/dev/video/fb/fb.c,v 1.9 2004/05/19 22:52:54 dillon Exp $ |
| 30 | */ |
| 31 | |
| 32 | #include "opt_fb.h" |
| 33 | |
| 34 | #include <sys/param.h> |
| 35 | #include <sys/systm.h> |
| 36 | #include <sys/conf.h> |
| 37 | #include <sys/bus.h> |
| 38 | #include <sys/kernel.h> |
| 39 | #include <sys/malloc.h> |
| 40 | #include <sys/uio.h> |
| 41 | #include <sys/fbio.h> |
| 42 | #include <sys/linker_set.h> |
| 43 | #include <sys/device.h> |
| 44 | |
| 45 | #include <vm/vm.h> |
| 46 | #include <vm/pmap.h> |
| 47 | |
| 48 | #include "fbreg.h" |
| 49 | |
| 50 | SET_DECLARE(videodriver_set, const video_driver_t); |
| 51 | |
| 52 | /* local arrays */ |
| 53 | |
| 54 | /* |
| 55 | * We need at least one entry each in order to initialize a video card |
| 56 | * for the kernel console. The arrays will be increased dynamically |
| 57 | * when necessary. |
| 58 | */ |
| 59 | |
| 60 | static int vid_malloc; |
| 61 | static int adapters = 1; |
| 62 | static video_adapter_t *adp_ini; |
| 63 | static video_adapter_t **adapter = &adp_ini; |
| 64 | static video_switch_t *vidsw_ini; |
| 65 | video_switch_t **vidsw = &vidsw_ini; |
| 66 | |
| 67 | #ifdef FB_INSTALL_CDEV |
| 68 | static dev_t vidcdevsw_ini; |
| 69 | static dev_t *vidcdevsw = &vidcdevsw_ini; |
| 70 | #endif |
| 71 | |
| 72 | #define ARRAY_DELTA 4 |
| 73 | |
| 74 | static int |
| 75 | vid_realloc_array(void) |
| 76 | { |
| 77 | video_adapter_t **new_adp; |
| 78 | video_switch_t **new_vidsw; |
| 79 | #ifdef FB_INSTALL_CDEV |
| 80 | dev_t *new_cdevsw; |
| 81 | #endif |
| 82 | int newsize; |
| 83 | int s; |
| 84 | |
| 85 | if (!vid_malloc) |
| 86 | return ENOMEM; |
| 87 | |
| 88 | s = spltty(); |
| 89 | newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; |
| 90 | new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK); |
| 91 | new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, M_WAITOK); |
| 92 | #ifdef FB_INSTALL_CDEV |
| 93 | new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, M_WAITOK); |
| 94 | #endif |
| 95 | bzero(new_adp, sizeof(*new_adp)*newsize); |
| 96 | bzero(new_vidsw, sizeof(*new_vidsw)*newsize); |
| 97 | bcopy(adapter, new_adp, sizeof(*adapter)*adapters); |
| 98 | bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); |
| 99 | #ifdef FB_INSTALL_CDEV |
| 100 | bzero(new_cdevsw, sizeof(*new_cdevsw)*newsize); |
| 101 | bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); |
| 102 | #endif |
| 103 | if (adapters > 1) { |
| 104 | free(adapter, M_DEVBUF); |
| 105 | free(vidsw, M_DEVBUF); |
| 106 | #ifdef FB_INSTALL_CDEV |
| 107 | free(vidcdevsw, M_DEVBUF); |
| 108 | #endif |
| 109 | } |
| 110 | adapter = new_adp; |
| 111 | vidsw = new_vidsw; |
| 112 | #ifdef FB_INSTALL_CDEV |
| 113 | vidcdevsw = new_cdevsw; |
| 114 | #endif |
| 115 | adapters = newsize; |
| 116 | splx(s); |
| 117 | |
| 118 | if (bootverbose) |
| 119 | printf("fb: new array size %d\n", adapters); |
| 120 | |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | static void |
| 125 | vid_malloc_init(void *arg) |
| 126 | { |
| 127 | vid_malloc = TRUE; |
| 128 | } |
| 129 | |
| 130 | SYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); |
| 131 | |
| 132 | /* |
| 133 | * Low-level frame buffer driver functions |
| 134 | * frame buffer subdrivers, such as the VGA driver, call these functions |
| 135 | * to initialize the video_adapter structure and register it to the virtual |
| 136 | * frame buffer driver `fb'. |
| 137 | */ |
| 138 | |
| 139 | /* initialize the video_adapter_t structure */ |
| 140 | void |
| 141 | vid_init_struct(video_adapter_t *adp, char *name, int type, int unit) |
| 142 | { |
| 143 | adp->va_flags = 0; |
| 144 | adp->va_name = name; |
| 145 | adp->va_type = type; |
| 146 | adp->va_unit = unit; |
| 147 | } |
| 148 | |
| 149 | /* Register a video adapter */ |
| 150 | int |
| 151 | vid_register(video_adapter_t *adp) |
| 152 | { |
| 153 | const video_driver_t **list; |
| 154 | const video_driver_t *p; |
| 155 | int index; |
| 156 | |
| 157 | for (index = 0; index < adapters; ++index) { |
| 158 | if (adapter[index] == NULL) |
| 159 | break; |
| 160 | } |
| 161 | if (index >= adapters) { |
| 162 | if (vid_realloc_array()) |
| 163 | return -1; |
| 164 | } |
| 165 | |
| 166 | adp->va_index = index; |
| 167 | adp->va_token = NULL; |
| 168 | SET_FOREACH(list, videodriver_set) { |
| 169 | p = *list; |
| 170 | if (strcmp(p->name, adp->va_name) == 0) { |
| 171 | adapter[index] = adp; |
| 172 | vidsw[index] = p->vidsw; |
| 173 | return index; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | return -1; |
| 178 | } |
| 179 | |
| 180 | int |
| 181 | vid_unregister(video_adapter_t *adp) |
| 182 | { |
| 183 | if ((adp->va_index < 0) || (adp->va_index >= adapters)) |
| 184 | return ENOENT; |
| 185 | if (adapter[adp->va_index] != adp) |
| 186 | return ENOENT; |
| 187 | |
| 188 | adapter[adp->va_index] = NULL; |
| 189 | vidsw[adp->va_index] = NULL; |
| 190 | return 0; |
| 191 | } |
| 192 | |
| 193 | /* Get video I/O function table */ |
| 194 | video_switch_t |
| 195 | *vid_get_switch(char *name) |
| 196 | { |
| 197 | const video_driver_t **list; |
| 198 | const video_driver_t *p; |
| 199 | |
| 200 | SET_FOREACH(list, videodriver_set) { |
| 201 | p = *list; |
| 202 | if (strcmp(p->name, name) == 0) |
| 203 | return p->vidsw; |
| 204 | } |
| 205 | |
| 206 | return NULL; |
| 207 | } |
| 208 | |
| 209 | /* |
| 210 | * Video card client functions |
| 211 | * Video card clients, such as the console driver `syscons' and the frame |
| 212 | * buffer cdev driver, use these functions to claim and release a card for |
| 213 | * exclusive use. |
| 214 | */ |
| 215 | |
| 216 | /* find the video card specified by a driver name and a unit number */ |
| 217 | int |
| 218 | vid_find_adapter(char *driver, int unit) |
| 219 | { |
| 220 | int i; |
| 221 | |
| 222 | for (i = 0; i < adapters; ++i) { |
| 223 | if (adapter[i] == NULL) |
| 224 | continue; |
| 225 | if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) |
| 226 | continue; |
| 227 | if ((unit != -1) && (adapter[i]->va_unit != unit)) |
| 228 | continue; |
| 229 | return i; |
| 230 | } |
| 231 | return -1; |
| 232 | } |
| 233 | |
| 234 | /* allocate a video card */ |
| 235 | int |
| 236 | vid_allocate(char *driver, int unit, void *id) |
| 237 | { |
| 238 | int index; |
| 239 | int s; |
| 240 | |
| 241 | s = spltty(); |
| 242 | index = vid_find_adapter(driver, unit); |
| 243 | if (index >= 0) { |
| 244 | if (adapter[index]->va_token) { |
| 245 | splx(s); |
| 246 | return -1; |
| 247 | } |
| 248 | adapter[index]->va_token = id; |
| 249 | } |
| 250 | splx(s); |
| 251 | return index; |
| 252 | } |
| 253 | |
| 254 | int |
| 255 | vid_release(video_adapter_t *adp, void *id) |
| 256 | { |
| 257 | int error; |
| 258 | int s; |
| 259 | |
| 260 | s = spltty(); |
| 261 | if (adp->va_token == NULL) { |
| 262 | error = EINVAL; |
| 263 | } else if (adp->va_token != id) { |
| 264 | error = EPERM; |
| 265 | } else { |
| 266 | adp->va_token = NULL; |
| 267 | error = 0; |
| 268 | } |
| 269 | splx(s); |
| 270 | return error; |
| 271 | } |
| 272 | |
| 273 | /* Get a video adapter structure */ |
| 274 | video_adapter_t |
| 275 | *vid_get_adapter(int index) |
| 276 | { |
| 277 | if ((index < 0) || (index >= adapters)) |
| 278 | return NULL; |
| 279 | return adapter[index]; |
| 280 | } |
| 281 | |
| 282 | /* Configure drivers: this is a backdoor for the console driver XXX */ |
| 283 | int |
| 284 | vid_configure(int flags) |
| 285 | { |
| 286 | const video_driver_t **list; |
| 287 | const video_driver_t *p; |
| 288 | |
| 289 | SET_FOREACH(list, videodriver_set) { |
| 290 | p = *list; |
| 291 | if (p->configure != NULL) |
| 292 | (*p->configure)(flags); |
| 293 | } |
| 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | /* |
| 299 | * Virtual frame buffer cdev driver functions |
| 300 | * The virtual frame buffer driver dispatches driver functions to |
| 301 | * appropriate subdrivers. |
| 302 | */ |
| 303 | |
| 304 | #define FB_DRIVER_NAME "fb" |
| 305 | |
| 306 | #ifdef FB_INSTALL_CDEV |
| 307 | |
| 308 | #if experimental |
| 309 | |
| 310 | static devclass_t fb_devclass; |
| 311 | |
| 312 | static int fbprobe(device_t dev); |
| 313 | static int fbattach(device_t dev); |
| 314 | |
| 315 | static device_method_t fb_methods[] = { |
| 316 | DEVMETHOD(device_probe, fbprobe), |
| 317 | DEVMETHOD(device_attach, fbattach), |
| 318 | |
| 319 | DEVMETHOD(bus_print_child, bus_generic_print_child), |
| 320 | { 0, 0 } |
| 321 | }; |
| 322 | |
| 323 | static driver_t fb_driver = { |
| 324 | FB_DRIVER_NAME, |
| 325 | fb_methods, |
| 326 | 0, |
| 327 | }; |
| 328 | |
| 329 | static int |
| 330 | fbprobe(device_t dev) |
| 331 | { |
| 332 | int unit; |
| 333 | |
| 334 | unit = device_get_unit(dev); |
| 335 | if (unit >= adapters) |
| 336 | return ENXIO; |
| 337 | if (adapter[unit] == NULL) |
| 338 | return ENXIO; |
| 339 | |
| 340 | device_set_desc(dev, "generic frame buffer"); |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | static int |
| 345 | fbattach(device_t dev) |
| 346 | { |
| 347 | printf("fbattach: about to attach children\n"); |
| 348 | bus_generic_attach(dev); |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | #endif /* experimental */ |
| 353 | |
| 354 | #define FB_UNIT(dev) minor(dev) |
| 355 | #define FB_MKMINOR(unit) (u) |
| 356 | |
| 357 | static d_open_t fbopen; |
| 358 | static d_close_t fbclose; |
| 359 | static d_read_t fbread; |
| 360 | static d_write_t fbwrite; |
| 361 | static d_ioctl_t fbioctl; |
| 362 | static d_mmap_t fbmmap; |
| 363 | |
| 364 | #define CDEV_MAJOR 123 /* XXX */ |
| 365 | |
| 366 | static struct cdevsw fb_cdevsw = { |
| 367 | /* name */ FB_DRIVER_NAME, |
| 368 | /* maj */ CDEV_MAJOR, |
| 369 | /* flags */ 0, |
| 370 | /* port */ NULL, |
| 371 | /* clone */ NULL, |
| 372 | |
| 373 | /* open */ fbopen, |
| 374 | /* close */ fbclose, |
| 375 | /* read */ fbread, |
| 376 | /* write */ fbwrite, |
| 377 | /* ioctl */ fbioctl, |
| 378 | /* poll */ nopoll, |
| 379 | /* mmap */ fbmmap, |
| 380 | /* strategy */ nostrategy, |
| 381 | /* dump */ nodump, |
| 382 | /* psize */ nopsize |
| 383 | }; |
| 384 | |
| 385 | static void |
| 386 | vfbattach(void *arg) |
| 387 | { |
| 388 | static int fb_devsw_installed = FALSE; |
| 389 | |
| 390 | if (!fb_devsw_installed) { |
| 391 | cdevsw_add(&fb_cdevsw, 0, 0); |
| 392 | fb_devsw_installed = TRUE; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | PSEUDO_SET(vfbattach, fb); |
| 397 | |
| 398 | /* |
| 399 | * Note: dev represents the actual video device, not the frame buffer |
| 400 | */ |
| 401 | int |
| 402 | fb_attach(dev_t dev, video_adapter_t *adp) |
| 403 | { |
| 404 | int s; |
| 405 | |
| 406 | if (adp->va_index >= adapters) |
| 407 | return EINVAL; |
| 408 | if (adapter[adp->va_index] != adp) |
| 409 | return EINVAL; |
| 410 | |
| 411 | s = spltty(); |
| 412 | reference_dev(dev); |
| 413 | adp->va_minor = minor(dev); |
| 414 | vidcdevsw[adp->va_index] = dev; |
| 415 | splx(s); |
| 416 | |
| 417 | printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); |
| 418 | return 0; |
| 419 | } |
| 420 | |
| 421 | /* |
| 422 | * Note: dev represents the actual video device, not the frame buffer |
| 423 | */ |
| 424 | int |
| 425 | fb_detach(dev_t dev, video_adapter_t *adp) |
| 426 | { |
| 427 | int s; |
| 428 | |
| 429 | if (adp->va_index >= adapters) |
| 430 | return EINVAL; |
| 431 | if (adapter[adp->va_index] != adp) |
| 432 | return EINVAL; |
| 433 | if (vidcdevsw[adp->va_index] != dev) |
| 434 | return EINVAL; |
| 435 | |
| 436 | s = spltty(); |
| 437 | vidcdevsw[adp->va_index] = NULL; |
| 438 | splx(s); |
| 439 | release_dev(dev); |
| 440 | return 0; |
| 441 | } |
| 442 | |
| 443 | static int |
| 444 | fbopen(dev_t dev, int flag, int mode, struct thread *td) |
| 445 | { |
| 446 | int unit; |
| 447 | dev_t fdev; |
| 448 | |
| 449 | unit = FB_UNIT(dev); |
| 450 | if (unit >= adapters) |
| 451 | return ENXIO; |
| 452 | if ((fdev = vidcdevsw[unit]) == NULL) |
| 453 | return ENXIO; |
| 454 | return dev_dopen(fdev, flag, mode, td); |
| 455 | } |
| 456 | |
| 457 | static int |
| 458 | fbclose(dev_t dev, int flag, int mode, struct thread *td) |
| 459 | { |
| 460 | int unit; |
| 461 | dev_t fdev; |
| 462 | |
| 463 | unit = FB_UNIT(dev); |
| 464 | if ((fdev = vidcdevsw[unit]) == NULL) |
| 465 | return ENXIO; |
| 466 | return dev_dclose(fdev, flag, mode, td); |
| 467 | } |
| 468 | |
| 469 | static int |
| 470 | fbread(dev_t dev, struct uio *uio, int flag) |
| 471 | { |
| 472 | int unit; |
| 473 | dev_t fdev; |
| 474 | |
| 475 | unit = FB_UNIT(dev); |
| 476 | if ((fdev = vidcdevsw[unit]) == NULL) |
| 477 | return ENXIO; |
| 478 | return dev_dread(fdev, uio, flag); |
| 479 | } |
| 480 | |
| 481 | static int |
| 482 | fbwrite(dev_t dev, struct uio *uio, int flag) |
| 483 | { |
| 484 | int unit; |
| 485 | dev_t fdev; |
| 486 | |
| 487 | unit = FB_UNIT(dev); |
| 488 | if ((fdev = vidcdevsw[unit]) == NULL) |
| 489 | return ENXIO; |
| 490 | return dev_dwrite(fdev, uio, flag); |
| 491 | } |
| 492 | |
| 493 | static int |
| 494 | fbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) |
| 495 | { |
| 496 | int unit; |
| 497 | dev_t fdev; |
| 498 | |
| 499 | unit = FB_UNIT(dev); |
| 500 | if ((fdev = vidcdevsw[unit]) == NULL) |
| 501 | return ENXIO; |
| 502 | return dev_dioctl(fdev, cmd, arg, flag, td); |
| 503 | } |
| 504 | |
| 505 | static int |
| 506 | fbmmap(dev_t dev, vm_offset_t offset, int nprot) |
| 507 | { |
| 508 | int unit; |
| 509 | dev_t fdev; |
| 510 | |
| 511 | unit = FB_UNIT(dev); |
| 512 | if ((fdev = vidcdevsw[unit]) == NULL) |
| 513 | return ENXIO; |
| 514 | return (dev_dmmap(fdev, offset, nprot)); |
| 515 | } |
| 516 | |
| 517 | #if experimental |
| 518 | DEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); |
| 519 | #endif |
| 520 | |
| 521 | /* |
| 522 | * Generic frame buffer cdev driver functions |
| 523 | * Frame buffer subdrivers may call these functions to implement common |
| 524 | * driver functions. |
| 525 | */ |
| 526 | |
| 527 | int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, |
| 528 | struct thread *td) |
| 529 | { |
| 530 | int s; |
| 531 | |
| 532 | s = spltty(); |
| 533 | if (!(sc->gfb_flags & FB_OPEN)) |
| 534 | sc->gfb_flags |= FB_OPEN; |
| 535 | splx(s); |
| 536 | return 0; |
| 537 | } |
| 538 | |
| 539 | int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, |
| 540 | struct thread *td) |
| 541 | { |
| 542 | int s; |
| 543 | |
| 544 | s = spltty(); |
| 545 | sc->gfb_flags &= ~FB_OPEN; |
| 546 | splx(s); |
| 547 | return 0; |
| 548 | } |
| 549 | |
| 550 | int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, |
| 551 | int flag) |
| 552 | { |
| 553 | int size; |
| 554 | int offset; |
| 555 | int error; |
| 556 | int len; |
| 557 | |
| 558 | error = 0; |
| 559 | size = adp->va_buffer_size/adp->va_info.vi_planes; |
| 560 | while (uio->uio_resid > 0) { |
| 561 | if (uio->uio_offset >= size) |
| 562 | break; |
| 563 | offset = uio->uio_offset%adp->va_window_size; |
| 564 | len = imin(uio->uio_resid, size - uio->uio_offset); |
| 565 | len = imin(len, adp->va_window_size - offset); |
| 566 | if (len <= 0) |
| 567 | break; |
| 568 | (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); |
| 569 | error = uiomove((caddr_t)(adp->va_window + offset), len, uio); |
| 570 | if (error) |
| 571 | break; |
| 572 | } |
| 573 | return error; |
| 574 | } |
| 575 | |
| 576 | int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, |
| 577 | int flag) |
| 578 | { |
| 579 | return ENODEV; |
| 580 | } |
| 581 | |
| 582 | int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, |
| 583 | caddr_t arg, int flag, struct thread *td) |
| 584 | { |
| 585 | int error; |
| 586 | |
| 587 | if (adp == NULL) /* XXX */ |
| 588 | return ENXIO; |
| 589 | error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); |
| 590 | if (error == ENOIOCTL) |
| 591 | error = ENODEV; |
| 592 | return error; |
| 593 | } |
| 594 | |
| 595 | int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, |
| 596 | int prot) |
| 597 | { |
| 598 | return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); |
| 599 | } |
| 600 | |
| 601 | #endif /* FB_INSTALL_CDEV */ |
| 602 | |
| 603 | static char |
| 604 | *adapter_name(int type) |
| 605 | { |
| 606 | static struct { |
| 607 | int type; |
| 608 | char *name; |
| 609 | } names[] = { |
| 610 | { KD_MONO, "MDA" }, |
| 611 | { KD_HERCULES, "Hercules" }, |
| 612 | { KD_CGA, "CGA" }, |
| 613 | { KD_EGA, "EGA" }, |
| 614 | { KD_VGA, "VGA" }, |
| 615 | { KD_PC98, "PC-98x1" }, |
| 616 | { KD_TGA, "TGA" }, |
| 617 | { -1, "Unknown" }, |
| 618 | }; |
| 619 | int i; |
| 620 | |
| 621 | for (i = 0; names[i].type != -1; ++i) |
| 622 | if (names[i].type == type) |
| 623 | break; |
| 624 | return names[i].name; |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | * Generic low-level frame buffer functions |
| 629 | * The low-level functions in the frame buffer subdriver may use these |
| 630 | * functions. |
| 631 | */ |
| 632 | |
| 633 | void |
| 634 | fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) |
| 635 | { |
| 636 | if (level <= 0) |
| 637 | return; |
| 638 | |
| 639 | printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", |
| 640 | FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, |
| 641 | adapter_name(adp->va_type), adp->va_type, adp->va_flags); |
| 642 | printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", |
| 643 | FB_DRIVER_NAME, adp->va_index, |
| 644 | adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, |
| 645 | adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); |
| 646 | printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", |
| 647 | FB_DRIVER_NAME, adp->va_index, |
| 648 | adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); |
| 649 | printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", |
| 650 | FB_DRIVER_NAME, adp->va_index, |
| 651 | (void *)adp->va_window, (int)adp->va_window_size/1024, |
| 652 | (int)adp->va_window_gran/1024, (void *)adp->va_buffer, |
| 653 | (int)adp->va_buffer_size/1024); |
| 654 | } |
| 655 | |
| 656 | void |
| 657 | fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, |
| 658 | int level) |
| 659 | { |
| 660 | if (level <= 0) |
| 661 | return; |
| 662 | |
| 663 | printf("%s%d: %s, mode:%d, flags:0x%x ", |
| 664 | driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); |
| 665 | if (info->vi_flags & V_INFO_GRAPHICS) |
| 666 | printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", |
| 667 | info->vi_width, info->vi_height, |
| 668 | info->vi_depth, info->vi_planes, |
| 669 | info->vi_cwidth, info->vi_cheight); |
| 670 | else |
| 671 | printf("T %dx%d, font:%dx%d, ", |
| 672 | info->vi_width, info->vi_height, |
| 673 | info->vi_cwidth, info->vi_cheight); |
| 674 | printf("win:0x%x\n", info->vi_window); |
| 675 | } |
| 676 | |
| 677 | int |
| 678 | fb_type(int adp_type) |
| 679 | { |
| 680 | static struct { |
| 681 | int fb_type; |
| 682 | int va_type; |
| 683 | } types[] = { |
| 684 | { FBTYPE_MDA, KD_MONO }, |
| 685 | { FBTYPE_HERCULES, KD_HERCULES }, |
| 686 | { FBTYPE_CGA, KD_CGA }, |
| 687 | { FBTYPE_EGA, KD_EGA }, |
| 688 | { FBTYPE_VGA, KD_VGA }, |
| 689 | { FBTYPE_PC98, KD_PC98 }, |
| 690 | { FBTYPE_TGA, KD_TGA }, |
| 691 | }; |
| 692 | int i; |
| 693 | |
| 694 | for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { |
| 695 | if (types[i].va_type == adp_type) |
| 696 | return types[i].fb_type; |
| 697 | } |
| 698 | return -1; |
| 699 | } |
| 700 | |
| 701 | int |
| 702 | fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) |
| 703 | { |
| 704 | int error; |
| 705 | int s; |
| 706 | |
| 707 | /* assert(adp != NULL) */ |
| 708 | |
| 709 | error = 0; |
| 710 | s = spltty(); |
| 711 | |
| 712 | switch (cmd) { |
| 713 | |
| 714 | case FBIO_ADAPTER: /* get video adapter index */ |
| 715 | *(int *)arg = adp->va_index; |
| 716 | break; |
| 717 | |
| 718 | case FBIO_ADPTYPE: /* get video adapter type */ |
| 719 | *(int *)arg = adp->va_type; |
| 720 | break; |
| 721 | |
| 722 | case FBIO_ADPINFO: /* get video adapter info */ |
| 723 | ((video_adapter_info_t *)arg)->va_index = adp->va_index; |
| 724 | ((video_adapter_info_t *)arg)->va_type = adp->va_type; |
| 725 | bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, |
| 726 | imin(strlen(adp->va_name) + 1, |
| 727 | sizeof(((video_adapter_info_t *)arg)->va_name))); |
| 728 | ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; |
| 729 | ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; |
| 730 | ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; |
| 731 | ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; |
| 732 | ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; |
| 733 | ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; |
| 734 | ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; |
| 735 | ((video_adapter_info_t *)arg)->va_window |
| 736 | #ifdef __i386__ |
| 737 | = vtophys(adp->va_window); |
| 738 | #else |
| 739 | = adp->va_window; |
| 740 | #endif |
| 741 | ((video_adapter_info_t *)arg)->va_window_size |
| 742 | = adp->va_window_size; |
| 743 | ((video_adapter_info_t *)arg)->va_window_gran |
| 744 | = adp->va_window_gran; |
| 745 | ((video_adapter_info_t *)arg)->va_window_orig |
| 746 | = adp->va_window_orig; |
| 747 | ((video_adapter_info_t *)arg)->va_unused0 |
| 748 | #ifdef __i386__ |
| 749 | = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; |
| 750 | #else |
| 751 | = adp->va_buffer; |
| 752 | #endif |
| 753 | ((video_adapter_info_t *)arg)->va_buffer_size |
| 754 | = adp->va_buffer_size; |
| 755 | ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; |
| 756 | ((video_adapter_info_t *)arg)->va_initial_mode |
| 757 | = adp->va_initial_mode; |
| 758 | ((video_adapter_info_t *)arg)->va_initial_bios_mode |
| 759 | = adp->va_initial_bios_mode; |
| 760 | ((video_adapter_info_t *)arg)->va_line_width |
| 761 | = adp->va_line_width; |
| 762 | ((video_adapter_info_t *)arg)->va_disp_start.x |
| 763 | = adp->va_disp_start.x; |
| 764 | ((video_adapter_info_t *)arg)->va_disp_start.y |
| 765 | = adp->va_disp_start.y; |
| 766 | break; |
| 767 | |
| 768 | case FBIO_MODEINFO: /* get mode information */ |
| 769 | error = (*vidsw[adp->va_index]->get_info)(adp, |
| 770 | ((video_info_t *)arg)->vi_mode, |
| 771 | (video_info_t *)arg); |
| 772 | if (error) |
| 773 | error = ENODEV; |
| 774 | break; |
| 775 | |
| 776 | case FBIO_FINDMODE: /* find a matching video mode */ |
| 777 | error = (*vidsw[adp->va_index]->query_mode)(adp, |
| 778 | (video_info_t *)arg); |
| 779 | break; |
| 780 | |
| 781 | case FBIO_GETMODE: /* get video mode */ |
| 782 | *(int *)arg = adp->va_mode; |
| 783 | break; |
| 784 | |
| 785 | case FBIO_SETMODE: /* set video mode */ |
| 786 | error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); |
| 787 | if (error) |
| 788 | error = ENODEV; /* EINVAL? */ |
| 789 | break; |
| 790 | |
| 791 | case FBIO_GETWINORG: /* get frame buffer window origin */ |
| 792 | *(u_int *)arg = adp->va_window_orig; |
| 793 | break; |
| 794 | |
| 795 | case FBIO_GETDISPSTART: /* get display start address */ |
| 796 | ((video_display_start_t *)arg)->x = adp->va_disp_start.x; |
| 797 | ((video_display_start_t *)arg)->y = adp->va_disp_start.y; |
| 798 | break; |
| 799 | |
| 800 | case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ |
| 801 | *(u_int *)arg = adp->va_line_width; |
| 802 | break; |
| 803 | |
| 804 | case FBIO_GETPALETTE: /* get color palette */ |
| 805 | case FBIO_SETPALETTE: /* set color palette */ |
| 806 | /* XXX */ |
| 807 | |
| 808 | case FBIOPUTCMAP: |
| 809 | case FBIOGETCMAP: |
| 810 | /* XXX */ |
| 811 | |
| 812 | case FBIO_SETWINORG: /* set frame buffer window origin */ |
| 813 | case FBIO_SETDISPSTART: /* set display start address */ |
| 814 | case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ |
| 815 | |
| 816 | case FBIOGTYPE: |
| 817 | case FBIOGATTR: |
| 818 | case FBIOSVIDEO: |
| 819 | case FBIOGVIDEO: |
| 820 | case FBIOSCURSOR: |
| 821 | case FBIOGCURSOR: |
| 822 | case FBIOSCURPOS: |
| 823 | case FBIOGCURPOS: |
| 824 | case FBIOGCURMAX: |
| 825 | |
| 826 | default: |
| 827 | error = ENODEV; |
| 828 | break; |
| 829 | } |
| 830 | |
| 831 | splx(s); |
| 832 | return error; |
| 833 | } |